Abstract:
A folding device (100) for folding a paper web (102) in the longitudinal direction includes a first rolling device (104) adapted to receiving the paper web from a supplying device (110). A fold-creating means (106) is adapted to create at least one fold along the paper web. A fold-pressing means (108) is adapted to press together portions of the paper web which are separated by the fold. A second rolling device (109) is adapted to receive and guide the folded paper web out from the folding device to a receiving device (112). At least a first and a second motor (114, 116) are connected to a control unit and are adapted to drive the paper web through the folding device and to maintain a predetermined tension in the paper web.
Abstract:
The present invention relates running webs which have been printed in a high-speed printer. A method and a device are provided for longitudinal cuffing of a running, unseparated web in two web portions, wherein the unseparated web (2) is printed in a high-speed printer (1) and wherein the unseparated web (2) is cut longitudinally in two web portions (2a, 2b). The unseparated web (2) is brought to run between a first and a second edge support (8, 9) such that longitudinal outer edges (2d, 2e), extending in the running direction (T), of the unseparated web (2) can cooperate with the edge supports (8, 9). If the width (B) of the unseparated web (2) varies and/or changes, this is read and the second edge support (9) and the cuffing means (7) are continuously controlled to move in a lateral direction (S) relative to the running direction (T) such that the unseparated web (2) is cut in two web portions (2a, 2b) with widths (B2a, B2b) which are adapted to each other.
Abstract:
The invention relates to an arrangement (1) for conveying of sheets (2a, b), comprising upper and lower receiving rolls (3, 4), an upper belt element (5) and a receiving surface (6). The belt element (5) extends in a region above the receiving surface (6). The sheets (2a, b) are conveyed in a substantially horizontal direction of movement (7) towards the receiving rolls (3, 4), which receiving rolls (3, 4) during rotation move the sheets (2a, b) one after another between and past the receiving rolls (3, 4), during which the respective sheet (2a, b), after passing between and past the receiving rolls (3, 4), are situated between said receiving surface (6) and upper belt element (5). The sheets (2a, b) between the upper belt element (5) and the receiving surface (6) are placed on one another such that a rear edge (8) of a sheet (2a) passing through and between the receiving rolls (3, 4) is overlapped by a front edge (9) of a following sheet (2b). A lifting means (10) situated in the sheet movement direction (7) after the receiving rolls (3, 4) is adapted to acting upon sheets (2a, b) passing through the receiving rolls (3, 4) and over the lifting means such that the front edge (9) of a sheet (2b) which has passed over and past the lifting means (10) assumes a shape which strengthens the sheet (2a, b) in the sheet movement direction (7).
Abstract:
A folding device (100) for folding a paper web (102) in the longitudinal direction includes a first rolling device (104) adapted to receiving the paper web from a supplying device (110). A fold-creating means (106) is adapted to create at least one fold along the paper web. A fold-pressing means (108) is adapted to press together portions of the paper web which are separated by the fold. A second rolling device (109) is adapted to receive and guide the folded paper web out from the folding device to a receiving device (112). At least a first and a second motor (114, 116) are connected to a control unit and are adapted to drive the paper web through the folding device and to maintain a predetermined tension in the paper web.